Unit Conversion Calculators
Length, weight, volume, temperature, and common unit converters.
80 published tools
Acceleration CalculatorFree acceleration calculator for acceleration calculator. Enter the values below to get an instant result.
Add Or Subtract Days From A Date CalculatorFree add or subtract days from a date calculator for date calculator add days. Enter the values below to get an instant result.Add Or Subtract Days From Date GeneratorFree add or subtract days from date generator for date calculator. Enter the values below to get an instant result.Age CalculatorFind exact age in years, months, and days — plus next birthday milestone and total time lived.Age From Birth Date CalculatorFree age from birth date calculator for age calculator. Enter the values below to get an instant result.Appliance Electricity Cost CalculatorFree appliance electricity cost calculator for electricity cost calculator. Enter the values below to get an instant result.Aquarium Volume CalculatorFree aquarium volume calculator for aquarium volume calculator. Enter the values below to get an instant result.
Area ConverterConvert square feet, acres, square meters, and hectares.Business Days Between Dates CalculatorFree business days between dates calculator for business days calculator. Enter the values below to get an instant result.Calculate force from mass and accelerationCalculate force from mass and acceleration using Newton's second law.Calculate gravitational potential energyCalculate PE = mgh near Earth's surface.Calculate kinetic energyCalculate KE = ½mv² from mass and velocity.Calculate mechanical powerCalculate power P = W/t or P = F·v.Calculate momentumCalculate linear momentum p = mv.Calculate workCalculate work W = F·d·cos(θ) when force moves an object.Calories From Macros CalculatorFree calories from macros calculator for macro calorie calculator. Enter the values below to get an instant result.
Celsius To Fahrenheit ConverterFree celsius to fahrenheit converter for Celsius to Fahrenheit calculator. Enter the values below to get an instant result.Centripetal Force CalculatorFree centripetal force calculator for centripetal force calculator. Enter the values below to get an instant result.
Convert angle unitsConvert degrees, radians, gradians, and turns.
Convert digital storage unitsConvert bytes, KB/MB/GB/TB and binary KiB/MiB/GiB.Convert energy unitsConvert joules, calories, kWh, BTU, and more.
Convert MPG and L/100kmConvert US MPG and liters per 100 km fuel economy.Convert power unitsConvert watts, kilowatts, horsepower, and BTU/h.Convert pressure unitsConvert PSI, bar, atm, kPa, Pa, and mmHg.
Convert speed unitsConvert mph, km/h, m/s, ft/s, and knots.
Cooking Measurements ConverterConvert US cups, tablespoons, teaspoons, and milliliters.
Currency Converter (illustrative)Convert major currencies with illustrative static rates — not live market data. Verify before sending money.Data Storage ConverterConvert between bytes, KB, MB, GB, and TB (decimal SI).Days Between Dates CalculatorCount days between two dates with optional weekend/holiday exclusions and a calendar view.Density/mass/volume CalculatorFree density/mass/volume calculator for density calculator. Enter the values below to get an instant result.Depth Of Field CalculatorFree depth of field calculator for depth of field calculator. Enter the values below to get an instant result.Dimensional Shipping Weight CalculatorFree dimensional shipping weight calculator for dimensional weight calculator. Enter the values below to get an instant result.Displacement Under Constant Acceleration CalculatorFree displacement under constant acceleration calculator for kinematic calculator. Enter the values below to get an instant result.Elapsed Time Between Clock Times CalculatorFree elapsed time between clock times calculator for time duration calculator. Enter the values below to get an instant result.Electrical Energy Use CalculatorFree electrical energy use calculator for electricity consumption calculator. Enter the values below to get an instant result.Exposure Value CalculatorFree exposure value calculator for exposure value calculator. Enter the values below to get an instant result.Fabric Yardage CalculatorFree fabric yardage calculator for fabric calculator. Enter the values below to get an instant result.
Feet And Inches To Centimeters ConverterFree feet and inches to centimeters converter for feet inches to cm calculator. Enter the values below to get an instant result.Focal Length / Image Distance CalculatorFree focal length / image distance calculator for lens equation calculator. Enter the values below to get an instant result.Food Quantity For Group CalculatorFree food quantity for group calculator for food quantity calculator party. Enter the values below to get an instant result.Fuel Cost CalculatorEstimate trip fuel cost from miles, MPG, and price per gallon — with a trip summary.
Gallons To Liters ConverterFree gallons to liters converter for gallons to liters calculator. Enter the values below to get an instant result.Heat Energy CalculatorFree heat energy calculator for heat calculator physics. Enter the values below to get an instant result.Heat Energy From Temperature Change CalculatorFree heat energy from temperature change calculator for heat calculator. Enter the values below to get an instant result.Hydrostatic Pressure CalculatorFree hydrostatic pressure calculator for hydrostatic pressure calculator. Enter the values below to get an instant result.Length ConverterConvert between inches, feet, yards, miles, centimeters, meters, and kilometers.Lens Focal Relationship CalculatorFree lens focal relationship calculator for lens equation calculator. Enter the values below to get an instant result.Miles Per Hour To Kilometers Per Hour ConverterFree miles per hour to kilometers per hour converter for mph to kph calculator. Enter the values below to get an instant result.MPG / L100km From Trip Data CalculatorFree mpg / l100km from trip data calculator for mpg calculator. Enter the values below to get an instant result.Mulch Required CalculatorFree mulch required calculator for mulch calculator. Enter the values below to get an instant result.Pool Volume CalculatorFree pool volume calculator for pool volume calculator. Enter the values below to get an instant result.
Pounds To Kilograms ConverterFree pounds to kilograms converter for lbs to kg calculator. Enter the values below to get an instant result.Pressure CalculatorFree pressure calculator for pressure calculator. Enter the values below to get an instant result.Print Dimensions From Pixels And DPI CalculatorFree print dimensions from pixels and dpi calculator for pixel to print size calculator. Enter the values below to get an instant result.Projectile Trajectory CalculatorFree projectile trajectory calculator for projectile motion calculator. Enter the values below to get an instant result.Projectile Trajectory Variables CalculatorFree projectile trajectory variables calculator for projectile motion calculator. Enter the values below to get an instant result.Required Final Exam Score CalculatorFree required final exam score calculator for final grade calculator. Enter the values below to get an instant result.Road Trip Time Including Stops CalculatorFree road trip time including stops calculator for road trip time calculator. Enter the values below to get an instant result.
Roman Numeral And Arabic Number ConverterFree roman numeral and arabic number converter for Roman numeral converter. Enter the values below to get an instant result.Scale Recipe Quantities CalculatorFree scale recipe quantities calculator for recipe scaler calculator. Enter the values below to get an instant result.Shipping Charge By Weight And Zone CalculatorFree shipping charge by weight and zone calculator for shipping calculator. Enter the values below to get an instant result.Soil Volume For Garden Bed CalculatorFree soil volume for garden bed calculator for soil calculator. Enter the values below to get an instant result.Speed ConverterConvert mph, km/h, and meters per second.Split Bill CalculatorDivide a restaurant bill evenly, with tip presets and per-person totals.Square Feet To Square Meters ConverterFree square feet to square meters converter for sq ft to sq m calculator. Enter the values below to get an instant result.Temperature ConverterConvert Fahrenheit, Celsius, and Kelvin.Time Zone ConverterConvert a local time between common US time zones. Uses fixed standard offsets — DST not auto-applied.Timesheet Hours CalculatorFree timesheet hours calculator for time card calculator. Enter the values below to get an instant result.Tip And Split Bill CalculatorFree tip and split bill calculator for tip calculator. Enter the values below to get an instant result.
Tip CalculatorSplit tips and totals across your party — US restaurant style with quick tip presets.Toll And Fuel Trip Cost CalculatorFree toll and fuel trip cost calculator for road trip cost calculator. Enter the values below to get an instant result.Total Road Trip Cost CalculatorFree total road trip cost calculator for road trip cost calculator. Enter the values below to get an instant result.Travel Time From Distance And Speed CalculatorFree travel time from distance and speed calculator for travel time calculator. Enter the values below to get an instant result.Volume ConverterConvert US cups, gallons, liters, and milliliters.Volumetric Flow Rate CalculatorFree volumetric flow rate calculator for flow rate calculator. Enter the values below to get an instant result.Wave Speed/frequency/wavelength CalculatorFree wave speed/frequency/wavelength calculator for wavelength calculator. Enter the values below to get an instant result.Wavelength Frequency Or Speed CalculatorFree wavelength frequency or speed calculator for wavelength calculator. Enter the values below to get an instant result.Wavelength From Audio Frequency CalculatorFree wavelength from audio frequency calculator for sound wavelength calculator. Enter the values below to get an instant result.Weight ConverterConvert pounds, ounces, kilograms, and grams.Working Days CalculatorCount business days between two dates. Optionally skip weekends and a fixed US federal holiday list.